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Diffstat (limited to 'gcc/config/arc/arc.h')
-rw-r--r--gcc/config/arc/arc.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/config/arc/arc.h b/gcc/config/arc/arc.h
index f6212d16895..5188d09e81a 100644
--- a/gcc/config/arc/arc.h
+++ b/gcc/config/arc/arc.h
@@ -397,7 +397,7 @@ if (GET_MODE_CLASS (MODE) == MODE_INT \
((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
/* Value is 1 if hard register REGNO can hold a value of machine-mode MODE. */
-extern unsigned int arc_hard_regno_mode_ok[];
+extern const unsigned int arc_hard_regno_mode_ok[];
extern unsigned int arc_mode_class[];
#define HARD_REGNO_MODE_OK(REGNO, MODE) \
((arc_hard_regno_mode_ok[REGNO] & arc_mode_class[MODE]) != 0)